EEPORT OF THE STATE BOTANIST 319 



Fig. 3 A Hydnum; c the cap; t the acuhi or teeth; s the stem; mc the 



mycelium. 

 Figs. 4 to 8 Vertical sections of caps and the upper part of their stenis 

 showing the relations of gills to stems. 



Gills free from the stem; stem hollow. 



Gills adnexed; stem stuffed. 



Gills adnate; stem solid. 



Gills emarginate, also adnate and having a decurrent tooth. 



GiUs decurrent. 



A plant with its cap umbonate, also squamose, and its stem bulbous. 



A plant with its cap umbilicate, its gills decurrent and its stem equal. 



A basidium with its four spores. 



An ascus containing eight spores. 



PLATE 1. 



Lycoperdon giganteum Batsch. 



Giant Puff-ball. 



Fig. 1 An immature plant; about one-half the natural size. 



2 A mature plant with, its rind above breaking into fragments, falling 

 away and exposing the dusty mass of spores; about half the 

 natural size. 

 ' ' 3 Two fragments of filaments from the spore mass, magnified about 



400 diameters. 

 ' ' 4 Several spores, X 400. 



PLATE 2. 



Lycoperdon cyathiforme Base. 



Cup-shaped Puff-ball 



Fig. 1 An immature plant. 



" 2 A full-grown plant with even surface. 



" 3 A full-grown plant with the surface cracked into areas or broad 

 spot-like scales. 



" 4 A mature plant with the upper part of the rind breaking into frag- 

 ments, falling away and exposing the puri)lish spore mass. 



' ' 5 The ragged cup-shaped base of an old plant after tl>o upper part of 

 the rind and the spore mass have been dispersed. 



' ' 6 Vertical section through an immature plant. 



' ' 7 Two fragments of filaments from the spore mas 



' ' 8 Seven spores, X 400. 



400. 



PLATE 3. 



MORCHELLA ESCULENTA Pers. 



Comiiton Morel. 

 Fig. 1 A mature plant. 

 " 2 Vertical section through the center of a mature plant . 

 " 3 A spore sack containing eight spores. X 400. 



